Gahnite
      Levy D, Pavese A, Sani A, Pischedda V
      Physics and Chemistry of Minerals 28 (2001) 612-618
      Structure and compressibility of synthetic ZnAl2O4 (gahnite) under
      high-pressure conditions, from synchrotron X-ray powder diffraction
      Sample: P = 39.8 GPa
      _database_code_amcsd 0008629

      CELL PARAMETERS:    7.7620   7.7620   7.7620   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    467.650
      Density (g/cm3):      5.208
      MAX. ABS. INTENSITY / VOLUME**2:      63.94430547    
      RIR:      3.998
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.81          5.34        4.4814    1   1   1         8
                32.63         77.84        2.7443    2   2   0        12
                38.47        100.00        2.3403    3   1   1        24
                46.82          3.59        1.9405    4   0   0         6
                51.31          8.95        1.7807    3   3   1        24
                58.23         23.03        1.5844    4   2   2        24
                62.14         32.72        1.4938    5   1   1        24
                62.14          4.31        1.4938    3   3   3         8
                68.37         38.99        1.3721    4   4   0        12
                71.97          1.24        1.3120    5   3   1        48
                77.83          7.76        1.2273    6   2   0        24
                81.28          9.11        1.1837    5   3   3        24
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       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.